Mandrel.



F. CASEY.

- i MANDREL.

llllllllllllll EDFEB. 2a, 191s.

Lmgm Paume@ Feb. 5,1918;

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FRANK CASEY, UF WASHINGTN, DISTRICT Ola CULUMBI, ASSEGNOR, T0 THE STONE STRAW COME'ANY, 0F WASHNGTON, DISTRICT OlE COLUMBM, A CURPGEATION MEW JERSEY.,

marinara.

Specification of Lettere Patent.

Patented heb. 5, dhd20 .application tiled February 2a, wie. Serial No. 30,892.

To aZZ whom it 'mag/'concertar Be it known that l, FRANK CASEY, a citizen of the United States, residing at Washington, in the District of Columbia, have invented certain new and useful llmprovements in Mandrels, of which the following is a specification.

to the surface 1n connection with means forl supplying these ducts with lubricant.

In the accompanying drawings Figure l is a top plan view;

llFig. 2 is a longitudinal vertical sectional view on anl enlarged scale, showing parts broken away; and

Fig. 3 is a section onthe line 8 3 of Fig. 2 on a slightly enlarged scale.

rllhe numeral 1 represents the mandrel. This is made of tubing, and has the ducts 2, 2, drilled therein to form outlets for the lubricant, at or near the spinning-point of the tube or straw being made. The outer end of the mandrel is closed by a lug 3, the outer end of which plugforms t e point d of the mandrel.

As a simple means of holding the mandrel in the stock 5, the inner end 6 -is screwthreaded, and the nut 7' is screwed thereon,

forming a head or enlar ement' which ts the bore of the stock at t at point and affords a means of securing the mandrel therein, as shown in Fig. 2;

After screwing this nut 7 on the threaded end 6 of the mandrel l, the parts are assembled by inserting'this end through the threaded bore 8 of the stock 5, after which the cap 9 having a threaded tap l0 is slid over theymandrel, and the tap 10 is screwed into the threads 8, thus forcing the inner end of the mandrel with the nut 7 firmly against the shoulder 11 in the stock 5. 'lhus a rigid connection between the mandrel and more or less might be formed, accordingly as a greater or less surface is to be lubri-v cated, or a greater or less quantity of lubricant is requlred in the formation of the tube or straw.

l claim:

A mandrel comprising a stock having a channel therein, and a bore at the outer end 4 of the channel of larger diameter than the channel, thereby forming a shoulder at the outer end thereof, a screw-threaded portion of still larger diameter than the bore at the extreme end of the stock, a tube having an enlarged inner end and a screw-threaded cap sleeved about the tube and engaging the enlarged vend thereof and having a screwthread engagement with the stock whereby the enlarged end of the tube is held therein against the shoulder. y

lin testimony whereof l ax my signature.

FRANK CASEY. 

